QCD sum rules analysis of the rate B-c -> X nu(nu)over-bar decays

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Azizi K., Khosravi R., BASHIRY V.

EUROPEAN PHYSICAL JOURNAL C, vol.56, no.3, pp.357-370, 2008 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 56 Issue: 3
  • Publication Date: 2008
  • Doi Number: 10.1140/epjc/s10052-008-0668-5
  • Journal Name: EUROPEAN PHYSICAL JOURNAL C
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.357-370
  • Middle East Technical University Affiliated: Yes

Abstract

Taking into account the gluon correction contributions to the correlation function, the form factors relevant to the rate B-c --> X nu(nu) over bar decays are calculated in the frame-work of the three-point QCD sum rules, where X stands for axial vector particle, AV(D-s1), and vector particles, V(D*, D-s*). The total decay width as well as the branching ratio of these decays are evaluated using the q(2) dependent expressions of the form factors. A comparison of our results with the predictions of the relativistic constituent quark model is presented.